Normal oil pressure ?

[patrickt]

Originally Posted by Michael C Henry

There should be three galleries running above the cam shaft from front to rear . The top center oil gallery isn't the one you block to eliminate the lifters.

Right, I have a 428 that has the side galleys blocked off for my solid lifters and, as I recall, the jiggle pin that was in there for the hydraulic lifters was at the end of one of the side galleys. I looked at my old Ford Service Manuals and they don't even show the damn pin, so I can't be sure -- you may be right on this.

[patrickt]

Fascinating thread on the jiggle pin used in the 427.
http://www.network54.com/Forum/74182...ter+galleries-



EDIT -- From that thread: This valve would have been placed at the front of the top oil passage, behind the timing cover, the purpose apparently to quickly "burp" air out of the gallerys to speed oil flow into the lifters upon cold startups.